Insider Screener
Real-time Form 4 Filtering Engine
| Filing Date | Trade Date | Ticker | Company Name | Reporting Person | Relationship | Industry (by SEC) | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-10-21 02:48 | 2025-10-17 | GH | Guardant Health, Inc. | POTTER MYRTLE S | Director | Services-Medical Laboratories | SALE | $66.95 | 26 | $1,741 | 18,324 | -0.1% |
| 2025-09-18 00:17 | 2025-09-17 | GH | Guardant Health, Inc. | POTTER MYRTLE S | Director | Services-Medical Laboratories | OPT+S | $55.63 | 26 | $1,446 | 18,281 | -0.1% |
| 2025-08-21 02:51 | 2025-08-19 | GH | Guardant Health, Inc. | POTTER MYRTLE S | Director | Services-Medical Laboratories | SALE | $59.02 | 26 | $1,535 | 18,239 | -0.1% |
| 2025-07-19 00:24 | 2025-07-17 | GH | Guardant Health, Inc. | POTTER MYRTLE S | Director | Services-Medical Laboratories | SALE | $48.20 | 26 | $1,253 | 18,196 | -0.1% |
| 2025-06-21 00:40 | 2025-06-18 | GH | Guardant Health, Inc. | POTTER MYRTLE S | Director | Services-Medical Laboratories | SALE | $49.47 | 26 | $1,286 | 18,154 | -0.1% |
| 2025-06-17 02:28 | 2025-06-16 | GH | Guardant Health, Inc. | POTTER MYRTLE S | Director | Services-Medical Laboratories | OPT+S | $49.70 | 2,626 | $130,512 | 18,180 | -12.6% |
| 2017-10-05 23:34 | 2017-10-03 | RAD | N/A | POTTER MYRTLE S | Director | Other | SALE | $2.09 | 28,189 | $58,915 | 78,790 | -26.4% |
| 2016-12-15 17:07 | 2016-12-13 | INSM | INSMED Inc | POTTER MYRTLE S | Director | Pharmaceutical Preparations | SALE | $12.79 | 6,466 | $82,731 | 0 | -100.0% |
| 2014-11-25 02:05 | 2014-11-20 | EVDY | N/A | POTTER MYRTLE S | Director | Other | OPT+S | $13.13 | 55,355 | $726,994 | 0 | -100.0% |
| 2012-05-23 00:09 | 2012-05-21 | ESRX | N/A | POTTER MYRTLE S | Director | Other | OPT+S | $51.88 | 16,182 | $839,448 | 6,872 | -70.2% |
| 2008-08-06 03:15 | 2008-08-01 | AMZN | Amazon.com, Inc. | POTTER MYRTLE S | Director | Retail-Catalog & Mail-Order Houses | SALE | $76.36 | 6,000 | $458,160 | 4,000 | -60.0% |
| 2005-05-31 21:32 | 2005-05-27 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT, | Other | OPT+S | $78.99 | 20,400 | $1,611,396 | 1,254 | -94.2% |
| 2005-05-28 02:43 | 2005-05-26 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT, | Other | OPT+S | $78.74 | 17,917 | $1,410,788 | 1,254 | -93.5% |
| 2005-04-20 02:38 | 2005-04-15 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT, | Other | OPT+S | $69.74 | 172,365 | $12,020,735 | 1,254 | -99.3% |
| 2005-03-02 02:06 | 2005-02-25 | AMZN | Amazon.com, Inc. | POTTER MYRTLE S | Director | Retail-Catalog & Mail-Order Houses | BUY | $34.68 | 2,883 | $99,982 | 2,883 | +100.0% |
| 2004-11-09 02:25 | 2004-11-04 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT, | Other | OPT+S | $48.72 | 75,000 | $3,653,753 | 1,553 | -98.0% |
| 2004-11-05 00:58 | 2004-11-02 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT, | Other | OPT+S | $47.42 | 164,276 | $7,790,066 | 1,553 | -99.1% |
| 2004-04-29 00:28 | 2004-04-26 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT | Other | OPT+S | $132.26 | 33,358 | $4,411,812 | 776 | -97.7% |
| 2004-04-29 00:27 | 2004-04-26 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT | Other | OPT+S | $132.26 | 18,590 | $2,458,678 | 776 | -96.0% |
| 2004-04-29 00:26 | 2004-04-26 | DNA | N/A | POTTER MYRTLE S | Officer; PRESIDENT | Other | OPT+S | $132.17 | 52,581 | $6,949,589 | 776 | -98.5% |
| 2003-12-08 23:23 | 2003-12-04 | DNA | N/A | POTTER MYRTLE S | Officer; EVP & COO | Other | OPT+S | $84.55 | 3,100 | $262,110 | 776 | -80.0% |
| 2003-10-15 00:04 | 2003-10-10 | DNA | N/A | POTTER MYRTLE S | Officer; EVP & COO | Other | OPT+S | $81.15 | 62,500 | $5,071,919 | 776 | -98.8% |
| 2003-09-09 03:07 | 2003-09-04 | DNA | N/A | POTTER MYRTLE S | Officer; EVP & COO | Other | OPT+S | $79.47 | 20,900 | $1,660,825 | 776 | -96.4% |
| 2003-09-09 03:06 | 2003-09-04 | DNA | N/A | POTTER MYRTLE S | Officer; EVP & COO | Other | OPT+S | $79.60 | 47,900 | $3,812,605 | 776 | -98.4% |
| 2003-09-09 03:06 | 2003-09-04 | DNA | N/A | POTTER MYRTLE S | Officer; EVP & COO | Other | OPT+S | $79.83 | 23,300 | $1,860,018 | 776 | -96.8% |
| 2003-09-09 03:05 | 2003-09-04 | DNA | N/A | POTTER MYRTLE S | Officer; EVP & COO | Other | OPT+S | $80.05 | 49,471 | $3,960,025 | 776 | -98.5% |
Strategic Signal Filtering
Our screener allows you to cut through the noise of routine stock grants and small trades. By focusing on high-value transactions from C-suite executives (CEO/CFO), you can identify where the "Smart Money" is being deployed with maximum conviction.
Investing Without Illusions
Insider data is not a magic wand, but it is the most honest indicator available. While insiders sell for many reasons (taxes, personal needs), they generally buy for only one: they believe the stock price is undervalued. We provide the tools to track these skin-in-the-game moves.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.